package com.example.framework.base;

import java.util.WeakHashMap;

import android.graphics.Bitmap;

/**
 * 
 * @author renxin.sun
 *
 */
public class ImageCache extends WeakHashMap<String, Bitmap>
{
	public boolean isCached(String url)
	{
		return containsKey(url) && get(url) != null;
	}
}
